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Ventilation Commissioning Certificate

A Ventilation Commissioning Certificate confirms that a mechanical ventilation system (MVHR, MEV, or individual extract fans) has been installed and commissioned in accordance with Building Regulations Approved Document F. It records measured airflow rates for each room and confirms they meet the minimum requirements.

Building Regulations Approved Document F, BS EN 13141Valid: One-off (per installation)

What it covers

  • Ventilation system type and specification
  • Room-by-room airflow measurements
  • Comparison against minimum required rates
  • Background ventilation assessment
  • System commissioning and balancing
  • Filter installation and maintenance guidance

Who needs a Ventilation Certificate?

New build developers
Self-builders
Building Control
Homeowners with MVHR

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Frequently asked questions about Ventilation Certificate

Is ventilation commissioning required?
Yes. Building Regulations Approved Document F requires that all new and replacement ventilation systems are commissioned and the results recorded. This includes individual extract fans, MEV, and MVHR systems.
What airflow rates are required?
Minimum extract rates vary by room: kitchen 60 l/s (boost), bathroom 15 l/s, utility 30 l/s, WC 6 l/s. Whole-dwelling ventilation rates depend on floor area and number of bedrooms.

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